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Finding the Fourth Proportional to 252,714.12, 348,736.34 and 139,534.44

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Solution

The fourth proportional to 252,714.12, 348,736.34 and 139,534.44 is: 192,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,714.12 : 348,736.34 = 139,534.44 : x
  2. Step 2: Convert to fraction form
    252,714.12/348,736.34 = 139,534.44/x
  3. Step 3: Cross multiply
    252,714.12x = 348,736.34 × 139,534.44
  4. Step 4: Simplify right side
    252,714.12x = 48,660,729,909.55
  5. Step 5: Solve for x
    x = 48,660,729,909.55/252,714.12
  6. Step 6: Final answer
    x = 192,552.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.